Air purification system

ABSTRACT

The present disclosure describes an apparatus including an air purifier having a housing. In some examples, the air purifier includes an intake and an outlet. According to some examples, the intake and the outlet are connected by an air passage. The air purifier may include a filtration system comprising a plurality of filters. In some examples, the filtration system is configured such that an airflow enters the air passage through the intake, passes through each one of the plurality of filters subsequent to entering the intake, and exits the air passage through the outlet subsequent to passing through the plurality of filters. According to some examples, the plurality of filters comprises a chemical adsorption filter.

BACKGROUND

There are many types of indoor air pollutants, such as volatile organiccompounds (like toluene, formaldehyde, and acetone), lead dust,fertilizers and animal waste, dust mites, insects, biologicalcontaminants, alcohol, chlorine, ammonia, and petrol-based solvents,oxides of nitrogen and sulfur, ozone, carbon monoxide, smoke, bacteriaand odor (such as that from leftover food), aerosols and viruses (suchas those contained in exhaled air) and allergen components. These indoorair pollutants mainly cause discomfort, but some of them may prove to bemore harmful, causing respiratory disorders, viral infections, orallergies. The use of air filtration or air purification systems withone or more filters may be useful to mitigate the negative effects ofthese particulates or pollutants.

SUMMARY

The present disclosure describes an apparatus (e.g., see apparatus 100as shown in FIG. 1 ) including an air purifier having a housing (e.g.,see housing 102 as shown in FIG. 1 ). In some examples, the air purifierincludes an intake (e.g., see intake 204 as shown in FIG. 2 ) and anoutlet (e.g., see the outlet 206 as shown in FIG. 2 ). According to someexamples, the intake and the outlet are connected by an air passage(e.g., see the air passage 214 as shown in FIG. 2 ). The air purifiermay include a filtration system (e.g., see the filtration system 110 asshown in FIG. 1 ) having a plurality of filters. In some examples, thefiltration system is configured such that an airflow enters the airpassage through the intake, passes through each one of the plurality offilters subsequent to entering the intake, and exits the air passagethrough the outlet subsequent to passing through the plurality offilters. According to some examples, the plurality of filters includes achemical adsorption filter (e.g., see the chemical adsorption filter 404as shown in FIGS. 4A and 4B).

Also described in the present disclosure is an apparatus including anair purifier having a housing. In some examples, the air purifierincludes an intake and an outlet, wherein the intake and the outlet areconnected by an air passage. According to some examples, the airpurifier includes a filtration system. The filtration system may includea pre-filter (e.g., see the pre-filter 402 as shown in FIGS. 4A and 4B)adjacent and subsequent to the intake. In some examples, the filtrationsystem includes a chemical adsorption filter adjacent and subsequent tothe pre-filter. According to some examples, the filtration systemincludes an after filter (e.g., see the after filter 406 as shown inFIGS. 4A and 4B) adjacent and subsequent to the chemical adsorptionfilter. The outlet may be subsequent to the after filter. In someexamples, the air purifier includes a motor (e.g., see motor 412 asshown in FIGS. 4A and 4B) configured to draw an airflow through thefiltration system. According to some examples, the filtration system isconfigured such that the airflow enters the air passage through theintake, the pre-filter, the chemical adsorption filter, the afterfilter, and then exits through the outlet.

The foregoing, and other features and advantages of the invention, willbe apparent from the following, more particular description of thepreferred embodiments of the invention, the accompanying drawings, andthe claims.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages are described belowwith reference to the drawings, which are intended to illustrate, butnot to limit, the invention. In the drawings, like characters denotecorresponding features consistently throughout similar embodiments.

FIG. 1 illustrates a perspective view of an air purification system,according to some examples.

FIG. 2 illustrates one example of a side view of the air purificationsystem of FIG. 1 , according to some examples.

FIG. 3 illustrates a cross-sectional view of a fan section of the airpurification system of FIG. 1 , according to some examples.

FIG. 4A illustrates one example of a cross-sectional front view of theair purification system of FIG. 1 , according to some examples.

FIG. 4B illustrates an additional example of a cross-sectional frontview of the air purification system of FIG. 1 , according to someexamples.

FIG. 5 illustrates a perspective view of a tray with wheels fortransport and mounting of the air purification system of FIG. 1 ,according to some examples.

FIG. 6A illustrates a flowchart depicting a method of filtering air,according to some examples.

FIG. 6B illustrates the flowchart of FIG. 6A showing one possiblelocation of a motor, according to some examples.

FIG. 6C illustrates the flowchart of FIG. 6A showing an additionalpossible location of a motor, according to some examples.

FIG. 7 illustrates a flowchart depicting a method of communicating witha fan of the air purification system of FIG. 1 , according to someexamples

COMPONENT INDEX

-   -   100—Apparatus    -   102—Housing    -   104—Top wall    -   106—Side wall    -   108—Bottom wall    -   110—Filtration system    -   202—Wheel    -   204—Intake    -   206—Outlet    -   208—Pressure gauge    -   210—Controller    -   212—Central axis    -   214—Air passage    -   302—Fan    -   304—Fan plate    -   402—Pre-filter    -   404—Chemical adsorption filter    -   406—After filter    -   408—HEPA filter    -   410—Anti-microbial filter    -   412—Motor    -   414—Layered wall    -   416—Insulation layer    -   418—Outer wall    -   420—Inner wall    -   422—Plenum    -   502—Tray

DETAILED DESCRIPTION

FIG. 1 illustrates a perspective view of one example of an apparatus100, and FIG. 2 shows a side view of apparatus 100. As illustrated,apparatus 100 may include an air purifier having a housing 102. Housing102 may include a top wall 104, a bottom wall 108, and at least one sidewall. While housing 102 in FIGS. 1 and 2 is shown as a rectangularprism, it is understood that other shaped housing 102 s are possiblewhile still practicing the present disclosure.

According to some examples, apparatus 100 is portable, and means oftransport for apparatus 100 may include at least one wheel. In someexamples, this at least one wheel 202 is coupled to the bottom wall 108of housing 102. In other examples, such as those that will be exploredin FIG. 5 , at least one wheel 202 is attached to a separate componentupon which apparatus 100 may be placed. FIG. 1 shows three wheels 202,and FIG. 2 illustrates two wheels 202. Based on the location of wheels202 in these perspectives, it is implied that the wheels 202 form arectangular formation, matching the shape of apparatus 100. However,other formations of wheels 202, such as a triangular formation, may alsobe utilized, so long as apparatus 100 is capable of balancing withoutoutside interference.

While wheels 202 are shown in FIGS. 1 and 2 , apparatus 100 does notrequire wheels 202 to be functional, and as such, examples of thepresent disclosure exist where apparatus 100 does not include wheels202. In such examples, a detachable tray (e.g., detachable tray 502 asshown in FIG. 5 ) which does include wheels 202 may be present,facilitating the transport of apparatus 100. While not shown, apparatus100 may include a handle, for example, to also facilitate the carriageof apparatus 100 without the use of wheels 202.

Also shown in FIGS. 1 and 2 are an intake 204 and an outlet 206. FIG. 2illustrates a central axis 212 running horizontally through apparatus100. In some examples, intake 204 is located beneath this central axis212, and outlet 206 is located above this central axis 212, as shown inFIG. 2 . However, it is understood that these locations may be swapped,or the intake 204 and outlet 206 may even be on the same side of thecentral axis 212, so long as air is permitted to flow through thefiltration system 110 after entering the intake 204 and before exitingthe outlet 206. The filtration system 110 is explored more thoroughly inFIGS. 4A, 4B, and 6A-C.

As can be seen in FIG. 1 , intake 204 and outlet 206 both run along allof the side walls 106 present on apparatus 100, and extend across theentire width of each side wall 106 upon which the intake 204 and outlet206 reside. However, it is understood that intake 204 and outlet 206 donot need to be present on every side wall, nor do they need to extendthe entire width of each wall upon which they reside. In some examples,the intake 204 and outlet 206 may exist on the bottom wall 108, top wall104, or both, instead of, or in combination with, any intake 204 oroutlet 206 present on the side walls 106. It is also understood,however, that the greater the surface area covered by intake 204 andoutlet 206, the greater the quantity of air that may be passed throughapparatus 100. According to some examples, and as shown in FIG. 2 , theair flows along a vertical air passage 214 in a manner substantiallyparallel to the side walls 106.

Also shown in FIGS. 1 and 2 , but only labeled in FIG. 2 , are apressure gauge 208 and a controller 210. According to some examples, thepressure gauge 208 provides an indication to a user of an increase ordecrease in pressure drop. This change in pressure drop may indicate aneed for maintenance or repair of one or more of the filters. Thecontroller 210 may be operated by a user to manually communicate to thefan 302 or motor 412 to operate the apparatus 100 on an “as needed”basis, which may provide benefits such as energy savings in a room thatis not currently occupied.

While not illustrated, a sensor may be present on apparatus 100. Thesensor may be capable of detecting the air purity in a room. In someexamples, this sensor can communicate with the fan (e.g., fan 302 asshown in FIG. 3 ) or motor (e.g. motor 412 as shown in FIGS. 4A and 4B)in order to influence the quantity of air being pulled through theapparatus 100. This may be affected by virtue of a higher air change perhour (ACH) or a larger number of re-circulations through the airpurifier.

It is important to increase the quantity of air moving through theapparatus 100 when air purity is lower, as these are the times when thegreatest amount of unwanted particulates or contaminants are present inthe air. The faster the air flows through apparatus 100, the fasterthese undesirable pollutants are removed, thus increasing the purity ofthe air.

Some example specifications for expediting the removal of unwantedparticulates or contaminants include a nominal air flow of about 1150cubic feet per minute, with five and a half air changes per hour. Insome examples, apparatus 100 can purify the air in a 1200 square foot(or 12000 cubic foot) room. According to some examples, apparatus 100takes a voltage of about 115 volts with a 5-15P cord and plug. Theapparatus 100 may use an IE4 ECM motor 412. According to some examples,the dimensions of apparatus 100 are approximately 29 inches by 29 inchesby 68 inches, wherein the 68-inch dimension is the height of apparatus100. The apparatus 100 may be made from coated steel with ABS plasticlouvers.

In some examples, the noise level of apparatus 100 is about 70 decibelsat a distance of three feet. This value may vary with the change in therotations per minute (RPM) of the fan and/or the motor, as well as theincrease and decrease in air flow. In some examples, the air purifier,top wall 104, bottom wall 108, and/or the inside of the plenum 422 arelined with a suitable acoustic foam material in order to decrease thesound level.

While also not illustrated, a camera may be present as an additionalsecurity feature. According to some examples, the camera is capable oftaking a photograph, recording a video, or both.

The pressure gauge 208 and the controller 210 are both shown on one ofthe side walls 106 of housing 102. However, this location is notstrictly necessary, and these components may reside on the top wall 104,bottom wall 108, or both if such a construction is desired. Likewise,the sensor and the camera as previously described may also reside on thetop wall 104, bottom wall 108, any of the side walls 106, or anycombination thereof.

While the sensor, the camera, the pressure gauge 208, and the controller210 may improve the quality of life for a user of the apparatus 100,none of these components are inherent to the apparatus 100, and as such,examples exist where none—or only a few—of these components are present.

While not shown in FIG. 1 or 2 , a screen may be coupled to the top wall104, the bottom wall 108, or any of the side walls 106. In someexamples, the screen is capable of providing information to a user.According to some examples, the screen communicates a status of at leastone of the filters, a replacement notification of at least one of thefilters, and/or a status of the air purity of a room as provided by thesensor. In some examples, the screen includes a manual interface,including the ability to start or stop the operation of the apparatus100. Additionally or alternatively, the screen may have a Wi-Fiinterface, enabling a user to start or stop the operation of theapparatus 100 from a remote computing device.

Also illustrated in FIGS. 1 and 2 , but not labeled, is a door with ahandle on one of the side walls 106. This door with a handle may bepresent on apparatus 100 in order to permit a user to see withinapparatus 100, for example, to replace a filter.

FIG. 3 illustrates a cross-sectional view of a fan 302 section ofapparatus 100 of FIGS. 1 and 2 , according to some examples. Thisperspective provides a view of the fan 302 location, as well as thelocation of the fan plate 304, as they may appear in relation to theside walls 106. In some examples, fan 302 is configured to draw airthrough apparatus 100. As discussed in FIGS. 1 and 2 above, the fan 302may be communicatively coupled to the controller 210 for modulation ofthe fan's speed. Once again, this controller 210 may receivecommunication from the sensor about the air purity of the room, ordirect input from a user for this speed modulation. In some examples,fan 302 is an axial fan. In alternative examples, fan 302 is acentrifugal-type fan. The fan 302 impeller may be either forward-curvedor backward-curved.

FIGS. 4A and 4B illustrate front cross-sectional views of two examplesof apparatus 100 of FIGS. 1, 2, and 3 . From this view, the fan 302location can be seen above the central axis 212, along with motor 412which operates the fan. As discussed in the previous figures above, thisfan 302 and motor 412 may receive communication, either from controller210 or the console, to regulate the speed at which fan 302 rotates, thusalso regulating the amount of air being drawn through apparatus 100. Thefan 302 impeller may either couple directly to the motor 412, or someother suitable mechanism.

Also shown in FIGS. 4A and 4B are five possible layers of filtration,including a pre-filter 402, a chemical adsorption filter 404, an afterfilter 406, a high-efficiency particulate air (HEPA) filter 408, and ananti-microbial filter 410. While these five filters are disclosed andillustrated, it is understood that any of these filters, alone or incombination with each other, or any additional filters, may be used.Generally, larger particulate-sized filters are present prior to smallerparticulate-sized filters, but this is not strictly necessary. Anynumber of filters may be present in apparatus 100 as can fit in housing102, so long as the filters do not interfere with motor 412 and the fan.Additionally, while the term chemical adsorption is used throughout thisdisclosure, it should be understood that chemical adsorption issynonymous with chemisorption, and thus these terms may be usedinterchangeably, and the use of one discloses the use of the other.

As seen in FIG. 4A, one potential location for motor 412 and fan 302 isbetween the HEPA filter 408 and the anti-microbial filter 410. However,this location is not strictly necessary for use of the apparatus 100,and motor 412 and fan 302 may be placed in any other location withinhousing 102.

In fact, FIG. 4B illustrates the motor 412 and the fan 302 locatedbetween the anti-microbial filter 410 and outlet 206. A benefit of thisconfiguration for motor 412 is that a greater amount of space may beallotted to motor 412, providing better suction and therefore better airflow. In this configuration, a plenum 422 may also be provided. In someexamples, this plenum 422 may allow even further space to permit evengreater suction by the motor 412 and fan 302 to provide even greater airflow through apparatus 100.

The chemical adsorption filter 404 may be constructed from part carbonbase and part alumina base. According to some examples, the carbon baseis an activated carbon base. However, the carbon base may also be anactivated carbon base impregnated by potassium hydroxide and/or sodiumhydroxide. In still other examples, the carbon base is additionallyimpregnated with free silver and/or copper ions.

In some examples, the alumina base is an alumina-activated base.However, the alumina base may also be an alumina-activated baseimpregnated by potassium permanganate. According to some examples, anadditional impregnation of free silver and/or copper ions may be added.

While a carbon base and an alumina base are disclosed, any compositionthat is effective as a medium for chemical adsorption may be used.Additionally, this disclosure includes providing the carbon base and thealumina base in equal quantities in the chemical adsorption filter 404.However, any percentage mixture of the carbon base and the alumina basemay be used, so long as the mixture is effective for chemicaladsorption.

In some examples, the pre-filter 402 is configured to remove largerparticulate from the air, so as to not unnecessarily overwork thechemical adsorption filter 404. The chemical adsorption filter 404 maycapture viruses or bacteria (or other microorganisms) in the air, andcause oxidation of these organisms due to a release of free oxygen orhydroxyl ions via the oxidizing catalyst and reaction with the activatedcarbon base and the alumina activated base. In this way, the chemicalmedia that makes up the chemical adsorption filter 404 reacts with theouter protein walls and amino acids of the virus, damaging the virus andmaking it inactive. According to some examples, the after filter 406captures dust particles that have made it through the chemicaladsorption filter 404, thus increasing the life of the HEPA filter 408.In some examples, the HEPA filter 408 arrests and removes nearly allairborne pollutants, including allergens and microbes. Theanti-microbial filter 410 may then arrest and deactivate any lingeringgerms or microbes. This anti-microbial filter 410 may also help to avoidany aggregation of algae and other microorganisms.

According to some examples, each of these filters may be accessedthrough the door present on one of the side walls 106. This door mayinclude a lock and key to increase safety and prevent someone fromunknowingly accessing the innards of the apparatus 100 while it is inoperation. In some examples, each filter utilizes a sliding mechanism tofacilitate the removal and replacement of the filters when needed.

As illustrated in the inset views of FIGS. 4A and 4B, the top wall 104,the bottom wall 108, and/or any of the side walls 106 may include alayered wall 414. The space between each layer of this layered wall 414may be constructed from an insulation layer 416 surrounded by aplurality of walls, such as an outer wall 418 and an inner wall 420,forming a double-walled construction. Though two walls are shown in thefigures and described herein, it is appreciated that more than two wallsmay be present in the layered wall 414. In some examples, thisinsulation layer 416 is a layer of pure, or near pure, vacuum. Thislayered wall 414 may be present in order to dampen the sound coming fromapparatus 100. The layered wall 414 may also be present in order todampen the vibration coming from apparatus 100. In some examples, thelayered wall 414 is present in order to increase the rigidity of housing102. In addition, either one of the outer wall 418 and the inner wall420 may be lined with acoustic material along the air flow path in orderto reduce noise.

FIG. 5 illustrates a perspective view of a tray 502 with wheels 202 fortransport of apparatus 100 of FIG. 1 , according to some examples. Inexamples of apparatus 100 that do not include wheels 202 coupleddirectly to the bottom wall 108 of housing 102, additional implementsmay be present to facilitate the transport and ease of movement ofapparatus 100. As shown in FIG. 5 , one such implement may be a tray 502with at least one wheel. According to some examples, tray 502 is sizedsuch that housing 102 may fit snuggly within tray 502. Similar to FIG. 1, FIG. 5 shows three wheels 202, one on each vertex of tray 502, byvirtue of the angle at which this figure is shown. This tends toindicate a rectangular formation of wheels 202 on tray 502. However,similar to FIGS. 1 and 2 , other formations, such as a triangularformation, may be utilized, so long as apparatus 100 is capable ofbalancing on tray 502 without outside interference.

FIGS. 6A, 6B, and 6C illustrate flowcharts showing a possible order ofair filtration through the filtration system 110, according to someexamples. The disclosed air path may either travel from top to bottom orbottom to top throughout apparatus 100. In some examples, the air entersapparatus 100 through intake 204 (at step 600). According to someexamples, the air is next filtered by the pre-filter 402 (at step 602).The air may next be filtered by the chemical adsorption filter 404 (atstep 604). In some examples, the air is next filtered by the afterfilter 406 (at step 606). According to some examples, the air is thenfiltered by the HEPA filter 408 (at step 608). The air may then befiltered by the anti-microbial filter 410 (at step 610). In someexamples, the air then leaves the air purification system through outlet206 (at step 612). This specific sequence of filters is shown in FIG.6A. However, FIGS. 6B and 6C illustrate an additional step involvingmotor 412.

As can be seen in FIG. 6B, the motor 412, responsible for running thefan 302 and driving the air flow through the apparatus 100, may bepresent between the HEPA filter 408 and the anti-microbial filter 410.In this case, after the air has passed through the HEPA filter 408 (atstep 608), the air may then traverse the fan 302 and motor 412 (at step614) prior to passing through the anti-microbial filter 410 (at step610).

Additionally, as can be seen in FIG. 6C, the motor 412 and fan 302 mayalso be present between the anti-microbial filter 410 and outlet 206. Inthis example, after the air has passed through the anti-microbial filter410 (at step 610), the air may then traverse the fan 302 and motor 412(at step 614) prior to exiting out of outlet 206 (at step 612).

As discussed in FIGS. 4A and 4B, the five filters present are not purelyindicative of the filters that may be included in apparatus 100. Anynumber of filters may be used in the system, up to and including as manyfilters as can fit within housing 102 so long as they do not interferewith the motor 412 or the fan. As illustrated in each of FIGS. 6A, 6B,and 6C, generally, the air will be directed through largerparticulate-sized filters prior to smaller particulate-sized filters,but, again, this is not strictly necessary for the device to operateproperly.

FIG. 7 illustrates a flowchart depicting a method of communicating witha fan 302 of apparatus 100, according to some examples. In someexamples, information about air purity is obtained (at step 700). Thisinformation about air purity may be obtained by a sensor (at step 702).According to some examples, the sensor communicates with the fan, basedon the information about air purity, to modulate the fan's 302 speed (atstep 708).

Additionally or alternatively, user input may be received (at step 704).In some examples, this user input is received by controller 210 (at step706). According to some examples, controller 210 then communicates withthe fan, based on the user input, to modulate the fan's 302 speed (atstep 708).

In general, the present disclosure describes an apparatus 100 includingan air purifier having a housing 102. In some examples, the air purifierincludes an intake 204 and an outlet 206. According to some examples,intake 204 and outlet 206 are connected by air passage 214. The airpurifier may include a filtration system 110 having a plurality offilters. In some examples, the filtration system 110 is configured suchthat an airflow enters the air passage 214 through intake 204, passesthrough each one of the plurality of filters subsequent to enteringintake 204, and exits the air passage 214 through outlet 206 subsequentto passing through the plurality of filters. According to some examples,the plurality of filters includes a chemical adsorption filter 404.

The plurality of filters may further include a pre-filter 402, an afterfilter 406, a high-efficiency particulate air (HEPA) filter 408, and ananti-microbial filter 410. In some examples, intake 204 is adjacent toand preceding the pre-filter 402. According to some examples, thepre-filter 402 is adjacent to and preceding the chemical adsorptionfilter 404. The chemical adsorption filter 404 may be adjacent to andpreceding the after filter 406. In some examples, the after filter 406is adjacent to and preceding the HEPA filter 408. According to someexamples, the HEPA filter 408 is adjacent to and preceding theanti-microbial filter 410. The anti-microbial filter 410 may be adjacentto and preceding outlet 206. In some examples, apparatus 100 furtherincludes a motor 412 placed between the HEPA filter 408 and theanti-microbial filter 410. According to some examples, apparatus 100further includes a motor 412 placed between the anti-microbial filter410 and outlet 206.

Housing 102 may include a layered wall 414 having a plurality of walls.In some examples, apparatus 100 further includes an insulation layer 416between two walls of the plurality of walls. According to some examples,apparatus 100 further includes a vacuum between two walls of theplurality of walls. Housing 102 may further include two side walls 106.In some examples, intake 204 and outlet 206 are each configured toextend across the two side walls 106 separately.

According to some examples, the chemical adsorption filter 404 includesa carbon base and an alumina base. The apparatus 100 may further includea sensor configured to detect an air purity. In some examples, apparatus100 further includes a fan 302 configured to draw air through airpassage 214. According to some examples, apparatus 100 further includesa controller 210 configured to modulate a speed of fan 302. Controller210 may receive information from user input. In some examples,controller 210 receives information from the sensor.

In some examples, apparatus 100 further includes a screen. According tosome examples, the screen is configured to display information. Theapparatus 100 may further include a camera. In some examples, apparatus100 further includes a tray 502 having a wheel 202. According to someexamples, tray 502 detachably couples to housing 102.

Also described in the present disclosure is an apparatus 100 includingan air purifier having a housing 102. In some examples, the air purifierincludes an intake 204 and an outlet 206, wherein the intake 204 and theoutlet 206 are connected by an air passage 214. According to someexamples, the air purifier includes a filtration system 110. Thefiltration system 110 may include a pre-filter 402 adjacent andsubsequent to the intake 204. In some examples, the filtration system110 includes a chemical adsorption filter 404 adjacent and subsequent tothe pre-filter 402. According to some examples, the filtration system110 includes an after filter 406 adjacent and subsequent to the chemicaladsorption filter 404. The outlet 206 may be subsequent to the afterfilter 406. In some examples, the air purifier includes a motor 412configured to draw an airflow through the filtration system 110.According to some examples, the filtration system 110 is configured suchthat the airflow enters the air passage 214 through the intake 204, thepre-filter 402, the chemical adsorption filter 404, the after filter406, and then exits through the outlet 206.

The filtration system 110 may further include a high-efficiencyparticulate air (HEPA) filter 408 and an anti-microbial filter 410. Insome examples, the filtration system 110 is configured such that theairflow enters the air passage 214 through the intake 204, thepre-filter 402, the chemical adsorption filter 404, the after filter406, the HEPA filter 408, the anti-microbial filter 410, and then exitsthrough the outlet 206. According to some examples, either motor 412 islocated between the anti-microbial filter 410 and outlet 206, or motor412 is located between the HEPA filter 408 and the anti-microbial filter410.

The section headings and subheadings provided herein are nonlimiting.The section headings and subheadings do not represent or limit the fullscope of the embodiments described in the sections to which the headingsand subheadings pertain. For example, a section titled “Topic 1” mayinclude embodiments that do not pertain to Topic 1 and embodimentsdescribed in other sections may apply to and be combined withembodiments described within the “Topic 1” section.

The various features and processes described above may be usedindependently of one another, or may be combined in various ways. Allpossible combinations and subcombinations are intended to fall withinthe scope of this disclosure. In addition, certain method, event, state,or process blocks may be omitted in some implementations. The methods,steps, and processes described herein are also not limited to anyparticular sequence, and the blocks, steps, or states relating theretocan be performed in other sequences that are appropriate. For example,described tasks or events may be performed in an order other than theorder specifically disclosed. Multiple steps may be combined in a singleblock or state. The example tasks or events may be performed in serial,in parallel, or in some other manner. Tasks or events may be added to orremoved from the disclosed example embodiments. The example systems andcomponents described herein may be configured differently thandescribed. For example, elements may be added to, removed from, orrearranged compared to the disclosed example embodiments.

Conditional language used herein, such as, among others, “can,” “could,”“might,” “may,” “e.g.,” and the like, unless specifically statedotherwise, or otherwise understood within the context as used, isgenerally intended to convey that certain embodiments include, whileother embodiments do not include, certain features, elements and/orsteps. Thus, such conditional language is not generally intended toimply that features, elements and/or steps are in any way required forone or more embodiments or that one or more embodiments necessarilyinclude logic for deciding, with or without author input or prompting,whether these features, elements and/or steps are included or are to beperformed in any particular embodiment. The terms “comprising,”“including,” “having,” and the like are synonymous and are usedinclusively, in an open-ended fashion, and do not exclude additionalelements, features, acts, operations and so forth. Also, the term “or”is used in its inclusive sense (and not in its exclusive sense) so thatwhen used, for example, to connect a list of elements, the term “or”means one, some, or all of the elements in the list. Conjunctivelanguage such as the phrase “at least one of X, Y, and Z,” unlessspecifically stated otherwise, is otherwise understood with the contextas used in general to convey that an item, term, etc. may be either X,Y, or Z. Thus, such conjunctive language is not generally intended toimply that certain embodiments require at least one of X, at least oneof Y, and at least one of Z to each be present.

The term “and/or” means that “and” applies to some embodiments and “or”applies to some embodiments. Thus, A, B, and/or C can be replaced withA, B, and C written in one sentence and A, B, or C written in anothersentence. A, B, and/or C means that some embodiments can include A andB, some embodiments can include A and C, some embodiments can include Band C, some embodiments can only include A, some embodiments can includeonly B, some embodiments can include only C, and some embodiments caninclude A, B, and C. The term “and/or” is used to avoid unnecessaryredundancy.

I claim:
 1. An apparatus, comprising: an air purifier comprising ahousing; an intake and an outlet, wherein the intake and the outlet areconnected by an air passage; and a filtration system comprising aplurality of filters, wherein the filtration system is configured suchthat an airflow enters the air passage through the intake, passesthrough each one of the plurality of filters subsequent to entering theintake, and exits the air passage through the outlet subsequent topassing through the plurality of filters, and wherein the plurality offilters comprises a chemical adsorption filter.
 2. The apparatus ofclaim 1, wherein the plurality of filters further comprises apre-filter, an after filter, a high-efficiency particulate air (HEPA)filter, and an anti-microbial filter.
 3. The apparatus of claim 2,wherein the intake is adjacent to and preceding the pre-filter, thepre-filter is adjacent to and preceding the chemical adsorption filter,the chemical adsorption filter is adjacent to and preceding the afterfilter, the after filter is adjacent to and preceding the HEPA filter,the HEPA filter is adjacent to and preceding the anti-microbial filter,and the anti-microbial filter is adjacent to and preceding the outlet.4. The apparatus of claim 3, further comprising a motor placed betweenthe HEPA filter and the anti-microbial filter.
 5. The apparatus of claim3, further comprising a motor placed between the anti-microbial filterand the outlet.
 6. The apparatus of claim 1, wherein the housingcomprises a layered wall comprising a plurality of walls.
 7. Theapparatus of claim 6, further comprising an insulation layer between twowalls of the plurality of walls.
 8. The apparatus of claim 6, furthercomprising a vacuum between two walls of the plurality of walls.
 9. Theapparatus of claim 8, wherein the housing further comprises two sidewalls, and wherein the intake and the outlet are each configured toextend across the two side walls separately.
 10. The apparatus of claim1, wherein the chemical adsorption filter comprises a carbon base and analumina base.
 11. The apparatus of claim 1, further comprising a sensorconfigured to detect an air purity.
 12. The apparatus of claim 11,further comprising: a fan configured to draw air through the airpassage; and a controller configured to modulate a speed of the fan. 13.The apparatus of claim 12, wherein the controller receives informationfrom a user input.
 14. The apparatus of claim 12, wherein the controllerreceives information from the sensor.
 15. The apparatus of claim 1,wherein the apparatus further comprises a screen, and wherein the screenis configured to display information.
 16. The apparatus of claim 1,wherein the apparatus further comprises a camera.
 17. An apparatus,comprising: an air purifier comprising a housing; an intake and anoutlet, wherein the intake and the outlet are connected by an airpassage; a filtration system comprising: a pre-filter adjacent andsubsequent to the intake; a chemical adsorption filter adjacent andsubsequent to the pre-filter; an after filter adjacent and subsequent tothe chemical adsorption filter, wherein the outlet is subsequent to theafter filter; and a motor configured to draw an airflow through thefiltration system, wherein the filtration system is configured such thatthe airflow enters the air passage through the intake, the pre-filter,the chemical adsorption filter, the after filter, and then exits throughthe outlet.
 18. The apparatus of claim 17, wherein the filtration systemfurther comprises a high-efficiency particulate air (HEPA) filter and ananti-microbial filter, and wherein the filtration system is configuredsuch that the airflow enters the air passage through the intake, thepre-filter, the chemical adsorption filter, the after filter, the HEPAfilter, the anti-microbial filter, and then exits through the outlet.19. The apparatus of claim 18, wherein the motor is located between theanti-microbial filter and the outlet.
 20. The apparatus of claim 18,wherein the motor is located between the HEPA filter and theanti-microbial filter.